Insulating walls



Feb. 12, 1929. 1,701,587

J. F. MowAT ET A1.

INSULATING WALLS Filed Deo, 24. 19x25 sra'rse berries.

Application filed December 24, 19555@ Serial No. WAYS?.

Uur invention relates to method ot' Iand means tor insulating the walls of eolie ovens and pz'irticularly the ends oi the regenerative chambers on the outside thereof to preventthe escape or" heat 'from the regenerative chambers so that Workmen in operatingr the eolie ovens 'will not be subjected yto the intense heat emanating from the Walls `and also ttor the purpose ot conliningcthe heat and preventing the lossthereot. K

inet-her and further object of our invention is the provision ot' insulating means for use particularly upon the end Walls of regenerative chambers of eolie ovens in ".vhich the leakage around all pipes is eliminated and heat loss from this source is prevented.

Another and further object oil our invention is the provision ot heat insulating means which is applied to the Walls of the oven so as to prevent the cracking oit the outer wall due to the intense heat to which these Walls are subjected.

Another and further object ot our invention is the provision ot heat insulating means for oven Walls Awhich is simple and eilicient in operation and which effects a very material saving in the operation of a coke oven due to the retaining of the heat in the oven and preventing radiation thereoit to the at niosphere so that the cost oi:l operating the oven is materially decreased and also very materially lessons the cost oi'f keeping the ovens properly heated to prevent cracking oit the Walls ot the oven when the oven is idle. The insulation being on the outside oit the oven Walls also performs its function more satisfactorily than When placed betiveen the Walls of the oven Which cannot be made too heavy because of the unequal expansion ot a thicker heavy Wall.

rl`hese and other objects of our invention will be more fully and better understood by roteren ce to the accompanying sheet ot' dravvings and in which z Figure l is a vieiv partially in section oi the end ot the regenerative chamber ot a coke oven having our invention applied thereto c Figure 2 is a detailed sectional View ot the ative Walls .shown in Figure l, and `iure 23 is a sectional vieiv ot a modified torni oi Wall construction tor colte oven.

fteferring noiv specifically to the drawings, foundation l0, usually made ot concrete or tilation and the lille, the ivalllt having a toncrete platiorni 18 positioned therein which supported by cross membersr i9 restn ing on `the Walls i6 at their outer ends and by the end walls or' the regenerative chamber et the colte oven on theirv inner side. A Agas main 20 is provided having a pipe 2l leading therefrom and through which gas is supplied to the combustion chambers adjacent the colzing chunbers of the oven l5, the gas being mi "th the heated air passing ed ivi through the regenerative chambers i4 as is connnon in colte ovens of this type. Extending; verticaliv along the ends of the coke oven is a plurality ot bucks lys 22, the said buckstays being spaced apart from each other and extending` into the foundation lO at their bottoms and being anchored in any suitable manner at their tops so as to torni the supporting members ior the end retaining Walls OLt the coke oven. Adjacent the regenerative chamber lel-A is a transversely extending Wall which is built up in the usual manner ot lire brick and on the outside oit which is a layer ot insulating material 2i with a turther Wall 25 being built as an outer Wall and `thich is composed oi" common brick or the like and forms the outer retaining Wall ot the regenerative chamber lll. y

in our improved invention vve add a Wall or a heavy coatingof insulatingl material 26 on the outside ot the Wall 25 and between the buclrstays on the outer side oi? which a retaining` Wall 2'? ot' ordinarj)7 bricks is placed or this wall may he made up of sheet iron, steel or the like as may be desireda ot sufiicient strength to retain the insulating Wall 26 in position so that the radiation of heat from the furnace Wall is very materially re duced. The Wall 26 may be composed of any vvell known heat insulating` material such as silocel9 lilinsul, asbestos or the like, it being' understood that the walls 26 and 27 are placed across the entire end of the regenerative chamber of t e colte oven at each end thereof so as to minimize and prevent the radiation of heat from the walls at these spaces to the largest extent possible.

In applying'these Walls to the furnace it may be done, either in the building of a new oven or in the addition of the tWo walls 26 and 27 to the ordinary standard construction of Walls for the regenerative chambers. In the case of ovens Which are already in service, the insulating material can be added to the Wall and then the retaining` Wall 27 of common brick, sheet iron or other material superin'iposed thereon which is thereafter allowed to set, thus sealing all cracks in the Wall due to the intense heat and also preventing very materially the radiation of heat from the Walls.

In Figure 3 is illustrated a modified form of our invention and in which an inner Wall 28 composed of iire brick is provided with a second Wall 29 of ordinary brick, with a Wall oi' insulating` material 30 such as we have described above superimposed on the Wall 29, and a retaining Wall 31 of ordinary brick. sheet iron or the like being provided to hold the insulating' material in proper position.

This construction is substantially the same as has been heretofore described except that the intermediate Wall 24 is omitted.

lVhile We have described more or less precisely the details of construction, We do not Wish tobe understood as limiting ourselves thereto, as ive contemplate changes in form and the proportion of parts and the substitution of equivalents, as circumstances may suggest or render expedient Without departing from the spirit or scope of our invention.

We claim:

A regenerator comprising in combination, retaining walls, checkerwork positioned Within said retaining Walls, an outer shell. and a filling of insulating material between said retaining Wall and said outer shell, the insulating material and the retaining Wall being independently movable with respect to each other and the outer shell in said retaining Wall also being independently movable With respect to each other.

Signed at Joliet, Illinois, this 17th day of December, 1925.

GEORGE P. VVARDLEY. JOI-IN FRED MOI/VAT. 

